Malware Analysis Report

2025-08-05 12:23

Sample ID 231213-3khcvsbfc3
Target 1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10
SHA256 1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10
Tags
privateloader risepro collection discovery persistence spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10

Threat Level: Known bad

The file 1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10 was found to be: Known bad.

Malicious Activity Summary

privateloader risepro collection discovery persistence spyware stealer

Risepro family

Privateloader family

Drops startup file

Reads user/profile data of web browsers

Reads user/profile data of local email clients

Checks installed software on the system

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Adds Run key to start application

Drops file in System32 directory

Unsigned PE

Program crash

Enumerates physical storage devices

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 23:34

Signatures

Privateloader family

privateloader

Risepro family

risepro

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-13 23:34

Reported

2023-12-13 23:36

Platform

win10v2004-20231130-en

Max time kernel

140s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe"

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FANBooster131.lnk C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A

Checks installed software on the system

discovery

Looks up external IP address via web service

Description Indicator Process Target
N/A ipinfo.io N/A N/A
N/A ipinfo.io N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\GroupPolicy C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A
File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeManageVolumePrivilege N/A C:\Windows\System32\svchost.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe

"C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe"

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4960 -ip 4960

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 1736

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k UnistackSvcGroup

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
N/A 224.0.0.251:5353 udp
US 193.233.132.51:50500 tcp
US 8.8.8.8:53 ipinfo.io udp
US 34.117.59.81:443 ipinfo.io tcp
US 8.8.8.8:53 51.132.233.193.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 81.59.117.34.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 218.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 a60057963482f87b07cdfb1d38e5efc9
SHA1 8cfe2ab8f39d12e2f2df3e57ebfe13603feb6ae2
SHA256 1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10
SHA512 62d8f8ef85dd4247bcaab5dc84b5ae66a66135e9d58021fa5fd31928d5b0f3552a7d2b6cef2fc8919da6007e41a8adb419fbf846b7e627a088aa2cd238f12417

C:\Users\Admin\AppData\Local\Temp\posterBox4yTG5o3sDGim3\ZunTSaNJLBVfWeb Data

MD5 f70aa3fa04f0536280f872ad17973c3d
SHA1 50a7b889329a92de1b272d0ecf5fce87395d3123
SHA256 8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA512 30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

C:\Users\Admin\AppData\Local\Temp\posterBox4yTG5o3sDGim3\QdX9ITDLyCRBWeb Data

MD5 9ee081ca0d9c3cd479031e1ff265961b
SHA1 a2bfa65a2ddcd529a134ea08efd6965bcd0e5665
SHA256 2a260265cd76d10c19658a7db48e7f328aba6df399e28e2e73642d5904dd73b4
SHA512 6b9f28e80628042205df78d5393ba53ff9866ee25d92500a806055333f0fe3a93cb1516754b617c42a342d2852cb4f2cd37c849dbfd19bedb71aef5e642c33e6

C:\Users\Admin\AppData\Local\Temp\grandUIA4yTG5o3sDGim3\information.txt

MD5 993fec0a960551e5a010168f2e0bd7e3
SHA1 616ed15c95175260666450ad0f4e032f47a184c1
SHA256 54f5b18b4e1773254077ac0cd48f9f1fa42eff366b836154963530118dd9983d
SHA512 8d7408dbea672e0a0b3d049c5b5740c5304631f9d9157330bbbd993aafddb9cc8aed390c09b261bea9507f2042d2a4a4fa89f5c512b53b1ee1882ede0a569a5f

memory/1240-98-0x000001FB68F40000-0x000001FB68F50000-memory.dmp

memory/1240-82-0x000001FB68E40000-0x000001FB68E50000-memory.dmp

memory/1240-115-0x000001FB71560000-0x000001FB71561000-memory.dmp

memory/1240-114-0x000001FB71530000-0x000001FB71531000-memory.dmp

memory/1240-118-0x000001FB71560000-0x000001FB71561000-memory.dmp

memory/1240-117-0x000001FB71560000-0x000001FB71561000-memory.dmp

memory/1240-116-0x000001FB71560000-0x000001FB71561000-memory.dmp

memory/1240-121-0x000001FB71560000-0x000001FB71561000-memory.dmp

memory/1240-120-0x000001FB71560000-0x000001FB71561000-memory.dmp

memory/1240-123-0x000001FB71560000-0x000001FB71561000-memory.dmp

memory/1240-122-0x000001FB71560000-0x000001FB71561000-memory.dmp

memory/1240-124-0x000001FB71560000-0x000001FB71561000-memory.dmp

memory/1240-119-0x000001FB71560000-0x000001FB71561000-memory.dmp

memory/1240-128-0x000001FB71180000-0x000001FB71181000-memory.dmp

memory/1240-131-0x000001FB71170000-0x000001FB71171000-memory.dmp

memory/1240-134-0x000001FB710B0000-0x000001FB710B1000-memory.dmp

memory/1240-126-0x000001FB71170000-0x000001FB71171000-memory.dmp

memory/1240-146-0x000001FB712B0000-0x000001FB712B1000-memory.dmp

memory/1240-148-0x000001FB712C0000-0x000001FB712C1000-memory.dmp

memory/1240-125-0x000001FB71180000-0x000001FB71181000-memory.dmp

memory/1240-150-0x000001FB713D0000-0x000001FB713D1000-memory.dmp

memory/1240-149-0x000001FB712C0000-0x000001FB712C1000-memory.dmp